docs: add plausible tracker config for docs site

package.json

@@ -1,6 +1,6 @@
 {
   "name": "subminer",
-  "version": "0.2.2",
+  "version": "0.2.3",
   "description": "All-in-one sentence mining overlay with AnkiConnect and dictionary integration",
   "packageManager": "bun@1.3.5",
   "main": "dist/main-entry.js",
@@ -58,6 +58,7 @@
   "license": "GPL-3.0-or-later",
   "dependencies": {
     "@catppuccin/vitepress": "^0.1.2",
+    "@plausible-analytics/tracker": "^0.4.4",
     "axios": "^1.13.5",
     "commander": "^14.0.3",
     "discord-rpc": "^4.0.1",